This class offers partial regular expression matching, as supported by the boost regex classes. More...

#include <wex/core/regex-part.h>

Public Types
enum	match_t { MATCH_NONE , MATCH_ERROR , MATCH_PART , MATCH_HISTORY , MATCH_FULL }
	The match types. More...

Public Member Functions
	regex_part (const std::string &regex, boost::regex::flag_type flags=boost::regex::ECMAScript)
	Constructor.

const std::string &	error () const
	Returns the error (in case MATCH_ERROR).

match_t	match (char c)
	Regular expression match using a single char at a time, possibly continuing a previous match.

match_t	match_type () const
	Returns the match type.

const std::string &	regex () const
	Returns the regex.

void	reset ()
	Resets matching to start again.

const std::string &	text () const
	Returns the current text (all chars that matched).

Detailed Description

This class offers partial regular expression matching, as supported by the boost regex classes.

For example a regex: *+ Settings *+ and incomplete text '* Set' would not match a normal std::regex, this class matches all *, * , * Set, * Settings *, where the first 3 would return a MATCH_PART, and the last a MATCH_FULL.

Member Enumeration Documentation

◆ match_t

enum wex::regex_part::match_t

The match types.

Enumerator
MATCH_NONE	the current text does not match at all, even partly
MATCH_ERROR	the regex part gives a regex error during parsing
MATCH_PART	the current text matches part of regex part
MATCH_HISTORY	the current text matches part of regex part, last char not
MATCH_FULL	the current text matches all regex part

Constructor & Destructor Documentation

◆ regex_part()

wex::regex_part::regex_part	(	const std::string &	regex,
		boost::regex::flag_type	flags = `boost::regex::ECMAScript`
	)

inline

Constructor.

Parameters

regex	the regular expression string
flags	the regex flags

Member Function Documentation

◆ match()

wex::regex_part::match_t wex::regex_part::match ( char c )

inline

Regular expression match using a single char at a time, possibly continuing a previous match.

Returns the match_t:

MATCH_PART: The resulting text from this and all previous chars do match
MATCH_FULL: The text matches the complete regex
MATCH_NONE: There is no match
MATCH_ERROR: There is a regex error, available using error() Non ascii chars are ignored.

Public Types